Just in time for the holidays: a Hubble Space Telescope picture postcard of hundreds of brilliant blue stars wreathed by
warm, glowing clouds. The festive portrait is the most detailed view of the largest stellar nursery in our local galactic
neighborhood.

The massive, young stellar grouping, called R136, is only a few million years old and resides in the 30 Doradus Nebula,
a turbulent star-birth region in the Large Magellanic Cloud (LMC), a satellite galaxy of our Milky Way. There is no known
star-forming region in our galaxy as large or as prolific as 30 Doradus.

Many of the diamond-like icy blue stars are among the most massive stars known. Several of them are over 100 times
more massive than our Sun. These hefty stars are destined to pop off, like a string of firecrackers, as supernovas in a
few million years.

The image, taken in ultraviolet, visible, and red light by Hubble's Wide Field Camera 3, spans about 100 light-years. The
nebula is close enough to Earth that Hubble can resolve individual stars, giving astronomers important information about
the stars' birth and evolution.

The brilliant stars are carving deep cavities in the surrounding material by unleashing a torrent of ultraviolet light, and
hurricane-force stellar winds (streams of charged particles), which are etching away the enveloping hydrogen gas cloud
in which the stars were born. The image reveals a fantasy landscape of pillars, ridges, and valleys, as well as a dark
region in the center that roughly looks like the outline of a holiday tree. Besides sculpting the gaseous terrain, the brilliant
stars can also help create a successive generation of offspring. When the winds hit dense walls of gas, they create
shocks, which may be generating a new wave of star birth.

The movement of the LMC around the Milky Way may have triggered the massive cluster's formation in several ways.
The gravitational tug of the Milky Way and the companion Small Magellanic Cloud may have compressed gas in the
LMC. Also, the pressure resulting from the LMC plowing through the Milky Way's halo may have compressed gas in the
satellite. The cluster is a rare, nearby example of the many super star clusters that formed in the distant, early universe,
when star birth and galaxy interactions were more frequent. Previous Hubble observations have shown astronomers that
super star clusters in faraway galaxies are ubiquitous.

The LMC is located 170,000 light-years away and is a member of the Local Group of Galaxies, which also includes the
Milky Way.

The Hubble observations were taken Oct. 20-27, 2009. The blue color is light from the hottest, most massive stars; the
green from the glow of oxygen; and the red from fluorescing hydrogen.